Charlie's coming back to Supernatural! When Dean and Sam find an old computer in the Men of Letters headquarters, they contact Charlie for help getting it functional again. In the process of moving the computer, they come across an unexpected guest, Dorothy from Oz.

The brothers are just trying to figure out how to deal with them. Plus, they have the King of Hell in the bunker....

Dean "has to battle with the fact" that this fictional story is real. And, Charlie has a "Well, heeellloooo," reaction.

Sam has a pragmatic reaction."How do we fix this situation that we're in."

Sam opens up to Dorothy in a way that he wouldn't to those close to him. He's able to tell her things because he assumes she won't be around for long.

"Slumber Party" is a nice "one off" that's separate from the larger arc of the war going on.

Padalecki is very excited about season 9 both for what he gets to do as an actor but the story as well.

"It has a sorta -- I don't want to say season 4 feel to it -- but it has this feel where the boys aren't just doing monster-of-the-week type thing or just one-off funny Dorothy "Changing Channels" type thing. But we actually have another war going on that we need to try and figure out." - Padalecki"It's so much bigger than that." - Ackles